is there any difference in flight between the older x avengers and the new nate doss avengers?

not noticably. the first runs were alittle more stable, thats a noticable difference.
but the ones w/ the doss stamp are really no different than the 2nd and 3rd runs.

The only other avenger i ever had that was different was a 2005 am worlds stamped one. it was understable new.

i have on of those, mad in dga proline plastic, the precursor to esp.

hmmm mine was X. I did really like the ESP fundrasier runs of the Avenger (Marked 1.7 stability)